Street-dust-removing machine.



A. KfiNDIG-HONEGGBR. STREET DUST REMOVING MACHINE.

APPLIGATION FILED JUNES, 1906.

1 a 11 76 9M Z Am w 7 V w M Fm mu W u Witnesses:

'MA v Mi M 15 4 A. KfiNDIG-HONEGGEB. STREET DUST REMOVING MACHINE.

APPLICATION FILED JUNE 8, 1906.

1b 2 9T m m MS t2 n LQIW a P A A A I 3 9 2 3 8 9 haven for Whzasses UNITED STATES PATENT ARNOLD K'U'NDIG-HONEGGER, 0F ZURICH, SWITZERLAND.

STREET-DUST-REMOVING MACHINE.

Specification of Letters Patent.

Patented Feb. '7, 1911.

Application filed June 8, 1906. Serial No. 320,773.

To all whom it may 'concer-n:

.Be it knownthat I, ARNOLD KtiNoIG-I'IoM EGGER, a citizen of the Repubhc of Switzerland, ltesidingat'zurich, in Switzerland,

which-form a part of this specification. 15

This invention relates to street cleaning machines and has for its object the collection of the dirt by a suitable suction device; the separation of the coarser from the finer dirt, before deliver to the receptacle for carrying it, and delivering the dust remain ing after separation to the receptacle and settling the same by a Water spray, while the separated dirt is delivered .into the receptacle below the level of but not directly under the inlet for the dust'and within range of the spray, whereby but a very'sm'all quantity of water will be necessary to settle thedust. in the eceptacle.

A forn'i of? construction of the invention is shown as an example in the accompanying drawings; Figure 1 being an elevatioi'i partially in section; and Fig. 2, a plan view. Fig. 3 is a detail view of the lower end of the delivery pipe.

The street dust removing machine consists substantially of a front part or main carriage 1 and a rear part or detachable wagon 2 releasably connected with the former, which wagon 2 serves as a collector or receiver for the dust taken up by the machine.

The machine is arranged to be driven by a motor and the motor 3 is mounted in the main carriage and the motor shaft is connectedwith one of the rear'wheel axles of the carriage by means of gear wheels and chain gearing; the carriage may "also be guided by means of a steering wheel and post 4 adapted to be operated from the drivers seat to actuate'any Well known mechanism capable of steering the front wheels. A. roller brush 5 of any desired construction is arranged in front of the frontaxle of the front carriage and is lnopnted in arms 7 pivoted on shaft 6. Behind the driversseat a fan 8 is arranged, Which is connected by means of ,a downwardly enlarging suction channel 9 with a capor hood 10 arranged over the brush and inclosing it over the ripper half of its periphery, an intermediate piece 11 of flexible material being interposed between the passage 9 and the hood 10, in order to give the hood 10, which moves up and down with the brush 5, tit e necessary mobility, relative to the fixed channel 9.

- 121s a dust separator arranged in the carriage 1, and formed as a evlindrical vessel with a funnel-shaped bottom and closed at its top, which dust separator is connected with the fan by a tube 13, this tube opening into the interior of the vessel from aboveand in a direction tangential to the periphery of the vessel. The dust separator also ,incloses a cylindrical central delivery pipe 14 arranged co-axial therewith, the lower end of which pipe is closed by a bottom plate I) and extends to the level of the upper edge of the conical lDOlJtOID' of the receiver, being provided with'lateral openings (i for the admission'of dust ladened air. A curved prolongation 15 connects with the upper end of thc pipe and opens into the attached collecting vagon or receptacle 2 fronrabove.

16 an elevator which is carried from the lower end .of the receiver 12 to the wagon 2 beneath the level of the mouth of the delivery pipe prolongation 15.

17- is a water reservoir arranged in the carriage 1 beneath the fan, from which reservoir the water necessary forcoolingpthe motor cylinder is drawn by a ump 18, mounted. on the motor shaft, and 1s further forced through a pipe 19, which pipeex tends inside the delivery pipe prolongation 15 to a point above its mouth in the Wagon nozzle 20.

21 is an aperture 111 the COllCClZlIlgTBCQlVGl on wagon 2. provided for the esca e of air.

. 2', and is provided at its end with a spray ng a brush 5 is drawn up before it is scattered,

. is further forced into the dust separator 12,

w oft-he air I fart-her through the shaft 14, 15, to the .col-

lecting'vehicle 2, being precipitated there by lating on the bottom of theseparatorlt? fall into the elevator 16 and are mechanically conveyed by it also to the receiver 2 and delivered below 'tion15 and somewhat to the side thereof so whole of the dirt were delivered through into the funnel-shaped bottom of the =ceiver, while the lighter particles enter the the coarser dirt when falling from the elevator into the vehicle? will be within rangetaking the preferably loosened from the surface of the road by a brush of any desired type mount- ,fcil in arms 7 I livered to a centrifugal dust coll-cctorwherc in the greater part of the dust is settled, the partially cleaned air being delivered into awagonwith' a amount of water required to settle the dust thejdirt removedihy the centrifugal separator tothe side of I the pipe 15, and some of this dust will, by

suction is produced in the channelt), Whereby the dust raised from the road by the through the hood IOand the channel 9 into the fan 8. From the fan, the dust laden air 14:, making a downwardly directed and cir cular movement n the recelver l2, the heavler. constltuents of the dust thus drop lateral apertures a. formed in the lower part shaft or pipe 14: and are forced.

the water spray emergii'lg from the pipe 19 and nozzle 20. The dust particles accumu the level of the prolongathat the air can escape to the outside through carrying dust with it and atithcsame time of-th'espray. This machine has a fan for dust from the roadway which is and the dust laden air is de- Water spray. The greater bulk of the dirt is also delivered to the wagon, but 111a dry condition, and the 111 pipe 15 is considerably less than it the said pipe. ."i'loreover, the elevator delivers and below the level of reason of its fall, form a cloud, which will also be settled by the water spray. claim: j v 1. In a machine of the-characterdescr'bed the combination with a suction conduit, ofa separating chamber communicating there With provided with a discharge orificein its bottom, a dust removing conduit having its receiving end inside the chamber near the orifice-and its discharge end extending out of the chamber, a com'eyer beneath" the oritice extending to a point near the discharge end of the conduit, and a moistening device in the latter near its discharge end.

2. In a machine of the character described, the .combination with a suction conduit, of a separating chamber communicating therewith .and having a funnclshaped portion open at its bottom, a conveyor having its recelving end under the opening of the bottom, a dust conduit extending into said chamber having lateral receiving apertures above said tunnelshaped 'botton'i. portion and a discharge aperture near the discharge end of the conveyer, a 'ater pipe in the dust conduit -and a spraying nozzle on said pipe near the discharge end of the conduit.

The methodof collecting and settling trash and the like which consists in agitating the trash in a dry state and simultane ously sucking the same into a conduit, blowing the sucked in trash into a receptacle tangential to the periphery of the latter, inecha nically conveying the heavy particles of trash from the bottom of the receptacle and entraining the dust through a spray of water and onto the heavy particles previously removed from the receptacle.

In testimony that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

ARNOLD KUNDlG-HONEGGER.

\Vitnesses Gns'riivn ANTON \Vmnnnunnn, A. InmmnKNncn'r. 

